Lock.



W. HADDOW.

LOCK.

APPLICATION FILED JUNE 26,1909.

Patented Mar. 28, 1916.

Inventor willq'am Had'fiibw Attorney Witnesses A zzjzz THE COllUMl JlAPLANOGRAPH 50.. WASHINGTON, D. C.

WILLIAM HADDOW, OF OSSINING, NEW YORK.

LOCK.

' Specification of Letters Patent.

Patented Mar. 28, 191-6.

Application filed June 26, 1909. Serial No. 504,564.

To all whom it may concern Be it known that I, WILLIAM HAnnow, a citizenof the United States, and a resident of Ossining, in the county ofVVe'stchester and State of New York, have invented certainnew and usefulImprovements in Locks, of which the following is a specification.

Thisinvention relates to looks and has for its object to furnish simpleand eflicient means particularly adapted for locking removable caps orcovers to receptacles.

In the drawing accompanying this specifica-tion is illustratedoneembodiment of my invention and which may be the preferred embodimentthereof. Therein Figure 1 shows a vertical cross section of a portion ofa tubular receptacle having a cap-or cover. Fig. 2 is a sectional planview on line a-a Fig. 1, of the lock with a key in operable positionrelatively thereto. Fig. 3 is'a view similar to Fig. 1 but showing theparts in different positions from Fig. 1. Fig. 4. is an edge view of thekey and showing a modification thereof.

Cylindrical receptacle or main member 2 is provided with a central stem3 supported in the lower part thereof by means not shown. Said stem ischamfered at its upper end into conical shape at 4 and directlythereunder is provided with an annular groove 5. Cap 7 is illustrated asof domeshaped contour and having a flange portion 8 fitting over theupper end of receptacle 2. Annular disk 9 is provided as a bottom forchamber 10 of said cover containing my improved locking mechanism.Locking member 6 comprises a bolt 60 for engagement with groove 5 ofpost 3 of receptacle 2 and said locking member is further provided withan arm terminating in a downwardly reaching projection or hook 11 forengagement with the forward end of slot 20 of key 30. Said hook has itsend face chamfered upwardly at 14 to allow the key to enter freelythereunder. Said locking member 6 has its rear end 15 bent downwardlyfor support 011 bottom 9 adjacent to its point of engagement by spring25. Said locking member 6 is also provided with a downwardly reachingportion 16 lying between its bolt 60 and key engaging hook 11. Saidportion16 engages bottom 9 to hold hook 11 above said bottom to allowspace for the entrance of key 30. Locln'ng member 6 comprises anelongated annular ring 12 which encircles hollow post 21 of cap 7. Saidlocking member is provided with a notch on the inside of the annularring portion opposite bolt 60 for the engagement of spring 25 of cap 7.Hollow post 21 has slot 22 through the wall thereof for the passagetherethrough of bolt 60 of locking member 6 for engagement with groove 5of post 3. Said slot 22 and spring 25 are efficient to hold lockingmember 6 in proper alinement for engagement with key 30 when said keyisthrust through key hole 19 of cap 7. Spring 25 has an annular head 26for engagement with holding means and a downwardly reaching arm 27 forengagement with locking member 6. Cap 7, spring 25 and hollow post 21may be held rigidly together by means of rivet 18. Said hollow post 21is located concentric with post 3 and has a cylindrical cavity 17therein which fits over said post, thereby providing guiding means forthe engagement of said post and locking member 6.

Directing attention now more particularly to key 30 said key isillustrated as having a slot 20, as already described, the forward edgeof which upon insertion through key-hole 19 engages hook 11 of lockingmember 6. Said key is provided with one or more stops 23 to prevent itsbeing thrust too far through key-hole 19. If desired slot 20 in said keymay be dispensed with and upturned lip 24 substituted therefor forengagement with hook 11, see Fig. 4.

My improved locking device may be assembled as follows: Locking member 6is first placed in position about hollow post 21 with bolt 60 projectingthrough slot 22 of said post. Post 21 is thereupon thrust into bottom 9and riveted over as shown. Rivet 18 is now placed in position in cap 7,spring 25 in position with its annular portion 26 on top of hollow post21 and arm 27 thereof in engagement with slot 13 of locking member 6;hollow post 21 carrying said locking member 6 and bottom 9 is thereuponthrust upwardly into cap 7, rivet 18 projecting downwardly throughspring 25 and into said hollow post. Then by suitable means rivet 18 isheaded within cavity or socket 17 of hollow post 21 thereby holding allthe members securely together.

Itis obvious that said locking means would be equally'efficient forreceptacles of other contours than cylindrical as shown, but it is onlythe cylindrical contour that would permit the locking cap to be rotatedon the receptacle. i

The operation of locking my improved device is as follows: Cap 7 beingthrust downwardly over receptacle 2 bolt 60 en'- gages and is thrustoutwardly by conical head 4: of stem 3 of said receptacle, therebypressing spring 25. Upon the further downward movement of said cap, bolt60 reaches a position opposite groove 5 in stem 3 and is urged thereintoby means of spring 25. The

engagement of said bolt 60 under the upper wall of said groove 5furnishes an efficient lock against the removal of said cap whileallowing free rotation of said cap about stem 3 and receptacle 2.

The operation of unlocking the device is as follows: Key 30 being thrustinto keyhole 19 and inclined somewhat downwardly in direction theforward end of slot 20 engages hook 11 of locking member 6. The

7 handle end of the key is then pressed slightly downwardly, and pulledoutwardly thereby withdrawing the locking member and freeing the boltfrom engagement with groove 5 of post 3. While in this position jectingthrough a mortise in said post, a-

leaf spring for moving the locking member into engagement with the stem,and means for securing the hollow post, spring and cover together.

2. A locking device for a receptacle and a 1 cover including. incombinatioma hollow post in the cover, a stem in the receptacle adaptedto enter the hollow post, stem engaging means projecting through the.mortise in a hollow post, means for moving the stem engaging means toits work, and key engaging means on said stem engaging means.

Signed this 25th day of June, 1909, at

Ossining, New York, before two subscribing witnesses. V

WILLIAM-HADDOW.

Witnesses: f

ROBERT M. AKIN, GEO. W. HADnow.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Yatents,

Washington, D. G. r I

